31319052 has 24 divisors (see below), whose sum is σ = 75436032. Its totient is φ = 10102800.

The previous prime is 31319051. The next prime is 31319053. The reversal of 31319052 is 25091313.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31319051) and next prime (31319053).

It is not an unprimeable number, because it can be changed into a prime (31319051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41724 + ... + 42467.

It is an arithmetic number, because the mean of its divisors is an integer number (3143168).

Almost surely, 2^31319052 is an apocalyptic number.

It is an amenable number.

31319052 is an abundant number, since it is smaller than the sum of its proper divisors (44116980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31319052 is a wasteful number, since it uses less digits than its factorization.

31319052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84229 (or 84227 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 31319052 is about 5596.3427343221. The cubic root of 31319052 is about 315.2120919846.

The spelling of 31319052 in words is "thirty-one million, three hundred nineteen thousand, fifty-two".